Building wall



A g- 1948- J. w. STAGGERS BUILDING WALL 3 Sheets-:Sheet 1 J: aihy yers Filed Feb. 11, 1944 Aug. 24, 1948.

J. W. STAGGERS BUILDING WALL 3 Sheets-Sheet 2 Filed Feb. 11. 1944 I QMWM [WSfayyeV'S J. w. STAGGERS B ING WALL 3 Sheets-S 5 Filed Fe 1944 Fatented Aug. 24, N48

TED.) TA E I v BUILDING went John W. staggers, washingtomj). 0. r Application February 11,1s tfs na npyse sse This invention. relates to a building wall: and aims to provide means whereby precast panels, sections, or slabsoi water-proof concrete using Portland cement or the like, willbejoined in awater or moisture-tight manner. i

" it is aimed to provide astructure wherein the joints between the sections or parts of: waterproof monolithic materialcomprises interfitting parts with opposed walls thereofhaving undercut grooves filled with water-proof cement as .a binder and water-proofing agent, and whicl'rsets when the parts are in pressed or clamped relation one with respect to the other.

;It is also aimed to provide a structure wherein one parti'of the joint has a groove which receives the other part andia-dvantageously receives the sealing cement for pressure dispersion in place.

' Further, it is aimed ;to provide a structure wherein: the'rib which enters the groove is ,reduced atv its base to facilitate the entry of the rib and dispersion of the sealing cement against danger of trapping air.

The more specific objects and advantages will become apparent from a consideration of the description"following'taken in connection with accompanying drawings illustrating an operative embodiment.

Insaid drawings: I

Figure 1 is an elevation, par'tly'broken away, of a precast concrete slab or Wall section using water-proof cement in its manufacture, and embodying the principles of the invention;

Figure 2 is a horizontal section illustrating the joint between a plurality of the parts of Figure l; Figu reB is a horizontal sectional View showing portions of sections constructed according to Figure" 1 but spaced relation todisclose details;

Figure 4" is a side elevation of a modified form o fftheprecast slab'orvvall section; v "Figure 5 is a horizontal section showing; the joint'between sections of'typedisclosed' in Figure4;l,l -l :l,-

Figure 6 isx a horizontal section of the parts at the joint mentioned with"res'pect to Figure 5, in spaced relation to disclose details; "Figure 'T'is a perspective view; fragmentary, of one edge at the joint of a slab or section according to Figure 4;

Figure 8 is a perspective view of a modified form of key which may be used at the joint;

Figure 9 is a horizontal section corresponding to Figure 5 through a further modified form; and

Figure 10 is a vertical sectional view taken on the line |l!l E3 of Figure 9.

'3 Claims. (01. 72-16:)

Referring specifically to the drawings wherein likereference characters designate'like' or sim'ila'r pa ts, and first to the form of Figuresu we; I is for-the requisite construction of"the"w'all, panels or sections 10 of any appropriate number and size. These sect-ions are made of concrete utilizinga V H equivalent cement, so thatwhen- 'set andhard"- ened, they will .be water and moisture proofr A'long one 'edge" of" the panel or s'e'ction" I0, I provide a rib H and" along the: parallel edge thereof; agroove I2 is formed so'that'the" rib 11 will enter through groove Z of adjacent'slab or section-as shownatthe left hr Figure'2i a 'Itis to be noted that groove lz'is widened a't the base to provide auxiliary undercutigroov'es 13.- preferably seini=circulan in cross' section'," and that in the adjacent side surfacesv of the 'rlbfl I; correspondingigrooves l4 are formed.

Before entering 'therib: into the: groove 12, the latter hasdepositedtherein; a water-proof *ce; ment from a predetermined quantity so'that whenthe'rib l2fis inserted, it will spread "or dis perse such" water prooftcement' toform sealing bodies at l5. Attention is called-to thefactthat the cement? I 5 isra water-proof Portland or equivalenfcement andv that the term: is'to be interpreted'as covering a plastic mixtureof the cement alone or with"the sand" or'bther' ingredientsim corporatedthereim Thekb'rnersof the rib ll arereduced or cut away as' at- 16, so that the rib 'I I will niore'radlly enter and disperse: the plastic? sealing material" in its path; and'reduce" the danger of'the trapping Particular attention is calledtothe fact that the slabsor section's ln 'are j'oined' when pressed one against the other by any suitable means' a'nd thatsuch pressure mayb'e applied by clamps and bracing, and temporarily secured to'the sections, the same being permitted to remain on the sec tions until the sealing cementat I5'isset" orha'rd. lt-w'ill be realized-ithat the bodies at 15' are of a water andfmoisture-proof nature and form "an intimate' bond "with" i the 'adjacent surfaces "in the groovesl3' anddt A modified form of the invention is shown in Figures 4 to 7. Here, the slab or wall section is designated 10a and made from the same material as the sections l0 and at the joint between sections, I use a key section made'of the same materials as sections In and 10a. Section Illa is constructed similarly along parallel sides. Such sides have projecting ribs l8 and at the junction of the ribs with the remainder of the side water proof Portland cement? or wall surfaces, grooves H] are provided. The key I1, adjacent one edge has recesses at 20 and such edge is reduced in width by slightly cutting away corners 2|.

will disperse it and cause it to fill the grooves I9 and 20, thus keying the slabs or sections Illa and v key I! together, forming a water-proof joint,

and binding or keying with all surfaceswhi'ch it contacts. Attention is called 'to the fact that the parts are thus assembled with pressure abplied to all of them, that is, the section's-10aand key H, which pressure may be supplied in any suitable manner, .asby means of clamps which clampthe sections [0a together and which clamp the key in contact with the projections I8. A modified form of key I! is shown at 11a in Figure 8. Instead of having the recesses 20, this keyhas projections 22 which are adapted to occupy. the groove i9 andthe space between sections 10a and projections 18 are in contact. Under such conditions, the side surfaces of key "a and'thesurfaces ofprojections 22- are coated with sealing cement like that used at 15 so that all contactingsurfaces of the key Fla and slab Illa-Will be sealed: water and moisture-tight and will bind, or bond with each other. It is clear that the key .I'Ia is made of water-proof cement like the-key ll ;;:A: final=modificati0n is disclosedin Figure 10 wherein: the wall or-slab sections 10b are joined with a key section :I'lb disposed between them, all being made of the same material as the sections-Wand l0a. Such sections l0b and'l'lb are initially separate and .it will be noted'that in their: engaging surfaces they have registering arc'uate grooves at 22 and 23, the grooves 23 preferably being shallower'than those at 22. The grooves are filled with a sealing cement 24 which binds' or bonds with all contacting-surfaces in addition to forming a water and moisture-proof joint. Cement 2,4 is the same as that used at l5. It is to be understood that in a joint utilizing the key lla-ofFigure Sand the parts of Figures 9;and 10, that is, all. joints,- all of the parts enteringinto thesame are united and maintained under :pressure. by, means of clamps or in any other suitable manner, with the pressure maintained-as long as desired and usually until 'the plastic or. watereproofing cement has set or hardens. v

Various changes may be resorted to provided they "fall within the spirit and scope of the invention,

a I- claim as my invention: 1. Inawall construction, a joint, said joint being composed ofa pair of connectableelements, one formed with a groove and the other with an interfitting rib, the grooved elementbeing formed with opposed undercut channels at the inner end of its groove, said rib being formed with channels at its free end, a cement deposit for the groove, the opposed channels of the elements being located to receive portions of the cement when the rib is forced into the groove and the cement is dispersed thereby, the outer side wall portions of the channels of the rib being shorter than the opposedsidewall portions to define the free end of the rib as of less cross-sectional area than the portion inwardly of the channels.

,2. A joint construction comprisin a pair of interfitting elements, one having a groove and ,1 theother a rib fitting in said groove, said grooved element being formed with an undercut channel at the'innermost portion thereof and adjacent one side ofthe rib, said rib being formed with a channel at its outermost portion and in opposed relation to the channel of the grooved element, a cement deposit for the groove, the opposed channels of the elements being located to receive portions of the cement when the rib is forced into the groove and the cement is dispersed thereby, the outermost portion of the rib being reduced to permit passage of the cement around that portion of the rib as the rib is forced into the grooved element.

,3. A joint construction comprising companion elements, one element being formed with a groove having side walls and an inner end wall and being of an even width for the major portion of its depth but having its inner end portion widened to form channels along the junction of its side walls with its inner end wall, the other one of w. said elements being formed with a rib fitting snugly into said groove and having side walls and an end wall, said rib bein formed with side channels along the junction of its side walls and its end wall registering with the channels of the groove when the rib is inserted therein,'and cer'nent deposited in the inner end portion of said groove and forced into the channels of the groove and the tongue as the tongue is fitted into the groove.

JOHN W. STAGGERS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 494,036 Smith Mar. 21, 1893 748,989 Schall Jan. 5, 1904 698,727 McClenahan Apr. 29, 1902 946,330 Brumbaugh Jan. 11, 1910 1,332,409 Pomerantz Mar. 2, 1920 1,652,305 Frewen Dec, 13, 1927 1,816,322 Frink July 28, 1931 1,947,188 Clark Feb. 13, 1934 2,192,366 Poroma Mar. 5, 1940 FOREIGN PATENTS Number Country Date 135,916 1 Great Britain Dec. 2, 19 19 

